GCSE Chemistry, 4.8-Chemical analysis

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11 Terms

1
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Describe the test and result for hydrogen gas.

[2 marks]

Insert a burning splint and a pop sound.

2
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Describe the test and result for oxygen. [2 marks]

Use glowing splint and relight splint.

3
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Describe the test for carbon dioxide. [2 marks]

Use limewaters and turn into cloudy

4
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Describe the test and result for chlorine. [2 marks]

Uses limtmus paper and turns white.

5
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Describe test and result of solution of calcium, magnesium, and aluminum ions. [3 marks]

  • Add sodium hydroxide.

  • All white precipitate.

  • Keep adding sodium hydroxide to aluminum solution will become clear.

6
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Describe the test and result for solution of copper(ll) ions. [2 marks]

Add sodium hydroxide and form blue precipitate

7
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Describe the test and result for solution of iron(ll) ions. [2 marks]

Add sodium hydroxide and from green precipitate.

8
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Describe the test and result for solution of iron(lll) ions. [2 marks]

Add sodium hydroxide and form brown precipitate.

9
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Describe the test and result for carbonate ions. [2 marks]

  • Add dilute acid

  • Bubble the gas through lime water.

  • Cloudy.

10
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Describe the test and result for halide ions. [5 marks]

a) Chloride.

b) Bromide.

c) Iodine.

  • Add nitric acid.

  • Add dilute silver nitrate solution.

  • a) White precipitate.

  • b) Cream precipitate.

  • c) Yellow precipitate.

11
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Describe the test and result for sulfate ions. [2 marks]

  • Add dilute hydrochloric acid.

  • Add barium chloride solution.

  • White precipitate.